Photographic camera.



Y PATBNTED Auw?, 1906.

J. PRAGHBBOURG. PHOTOGRAPHIG CAMERA.

APPLICATION FILED MAILZQ, 1905.

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J. PRAGHEBOURG.

PHOTOGRAPHIG CAMERA.v A'FBLIOATION FILED MAR. 29, 1905.

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Speccstion of Letters Patent.

latented Aug. 1906 To rtl/ will/0m, it Hwy concern,.-

Be it known that l, JEAN FRAoHnBo-one, o citizen of the Republic of France, residing in end Whose post-olllce address is No. 38 Boule verd Raspail, Peris, France, have invented new' and usetul improvements in Photographic Carrieres, of ivliiclrtlie following is e specification.

liis invention relates to s photographie corners `for taking tricolor photographs or ordinary photographs, es required, the changing ofthe plates and the color-filter being ei'- ected simultaneously and mechanically by pressing e spring-knob or by pressing en eirbell.

ln the accompanying drawings, Figure l is e longitudinal section approximately on tire line l 1 of Fig. Fig. laf is e detail of the mechanism shown in Figs. l and 3. 2 is airont elevation..

Fig. fi is e. front elevation of certain internal parte, the iront well of tlie 'lter-carrying disk and its mechanism being removed, the plane of section being indicated epproximately by tlie line s e. in'Fig. Fig. 5 is en elevation or" the lilter-cerrying disl and its releasing mechanism, the plane of section lbeing alongtl'ie line 5 5 in Fig. 7. Fig. 6 issn elevationapproximately olong the line 6 Gin Fig. 7, showing the mechanism for turning the ilte1cerrying disk end the shutter, the opperctns being set for tricolor photography. Fig. 7 is e vertical section approximately ,along the line 7 7 oilA Fig. 6. Fig. 8 .is s detail f ""ig. 6, showing tlie arrangement of the s yop for the 'taking of ordinary onecolor pliotogrcgilis. l? 9 is n detail of Fig. 5, illustrating the di freleesing mechanism er ranged for one-color pliotogrepls The apparet-us comprises e. disk A, fined to e spindle a, tne seid disk being provi-:led with -tliree colonilters l) e; t2 and with s circuler aperture c, which onlyT serves for ordinary pi otogrspliy. This disk is also provided with. pinsel" d2 di* d4 dd, which serlve to rncmentnrily stop tile colonrilters behind the objective B by coming in contact with s. door ble detent or escspement e f. Tine upper tooth ev is carried by e. lever g, tornino freely s pivot it, end the free end of Whici ebuts egeinst'e. pin i under the action ci e leefN spring t', 'fastened to the top of the lever Figi is e vertical se'c, tion approximately on tlieline 3 of Fig. l.

and engaged unter e. fixed pin i2, ss shown ,in Fie 5 0. N The lower tooth f forms pert of e. second lever y, Wniclr 1s plvoted et k upon the lever c sind *forros practically en adjustable port of this lever, the small erin of this lever 'being provided with e. slot l, in which is engaged tile stern. of e screw m, which is eccentricolly fixed upon the pivot 72,. This method oro mounting the lever allows, when the knob n -en the front end of the pivot h is turned in the 'direction of the arrow, Figs. 2 end 6, of further separating the toothf from the tooth e' When requiring to take ordinary photogrsplis, so that as long es the lever g end tooth e are lield up the pins may pees freely. The knob n is else used for adjusting the spacing or the teetli. Fig. 5 shows the oosition ell adjustientwhen the pivot ,t en screw m are liorizontelly in line; Fig. E), the screw m in the highest position.

, The lifting. of the levers a end y' is coliseo.

by pressing spring-knol) c, tlie stern of which termirletes in e conical portion p, which lay noting upon the short erin g of s le ver i" causes the said lever to swing upward elocnt the pivot h. ln' this lifting; movement e. torwerdlyorojecti,ng part s oil the lever e' lifts the levers and y, end tire escspement operates loy one off the pins d', d2, d, d, d5,

and d passing the stop e and then es tlie le vers ere lowered passing the stop f. 'lf de sired, the lever 9 een be actuated by inflicting en indie-rubber' bellows t by ineens of en bulli, the tube of which is fixed on the noszle u. The lever fr also provided 'with .e pin o, Wliiclr keeps the motelv 'plete QU, forming the shutter, closed.

The lter-carrying dist.' A is actuated oy s. siring fc, placed in o y, which een be set up by turning s. knol) or handle e, rennt ed iip'onxe. spindle i, on which is lined e toothed sectoi` 2, which gears with o pinion 3, fined to the disk A by the screw o. The toothed sector 2 is ".rovided with tlnee pins il, 5, end o, the pins el. and 5 losing on'tlie iront sind the pin 6 on the rear 'fece of tlie sector. The pin e is designed to lift s. pivoted ber 7, which closes the shutter w et tlie required moment. The second pin 5 cete against s. stop detent 8 to limit the action or the spring ce. The third pin 5 is designed 'to trensrnit the movements of the toothed TIS seetor 2 to the ehange ineehanisrn t the spindle 1, on which is fixed one ol the ondsot plates, wln'eh must work sin] ultainrousl; with the changing et the eoior-lllter.

`lllhen the operation connneneed, by pressing on the` button o the levers r, g, and are actuated. The pin e, carried hy the le ver r, is disengaged troni the tooth w, 6, at the upper edge et the shutter The shutter w is carried by an arm 3G, lixedly connected to an arin 37, pivoted at 3S. The arin 37 carries a pin 39, on which acts the spring 32, tending to press the pin. 3Q downward. When the shutter is no longer retained by pin o, 'the s )ring 32 presses down the pin 39 and shifts t 1e shutter in the direction ot the arrow in Fig. 6, opening the orilice. When the three plates have been exposed, the nger fl, carried by the toothed sector 2, lifts the lever 7, which aets on the arin which in the previous movement was brought aganst the end orn the lever 7. Then the arni S7 is litted7 and the shutter is carried to its original position, and. the pin o rides up on the inclined back edge oil. the tooth f'/ on the shutter and over the tooth and again holds the shutter iixed,

The detent 8 is adapted to be adjusted to two different positions, in one ol: which, Fig. 6, the apparatus is adjusted l'or tricolor photogralihy and in the other ot which, llig. 8, it is adapted 'for oine-eolor photography. The adjustment of the detent 8 is etl'eoted by means ol a earn t), mounted on a pivot 1.0, whielris turned by a knob Y1.1 on the front ot the camera, having an index or pointer which in one position indicates colors and in the other position ,blaek. The dei: ent 8 is held against the earn 9 by ineans olI a spring` l2.

in taking trieohn photographs the 'filteroarrying disk .makes three sureessive stops. it the end ol" the third stop the pin '5, earried by the sector, reines against the stop E of the detent S, which is in the position indicated in Fig o. The seetoi", and consoquently the tilt efr-carrying disk, Cannot rotate farther, but must be turned l, aekward to its starting position. When it is desired to take black photographs, the pin is allowed to turn until it strikes the stop 34, as belore.

Then the detent 8 is adjusted to the position i of Fig. 8. In this position the pin 5 is naught by the stop 35 ot the detent and can only swing backward and forward within the slot. in the detent a snllieient spaee. to allow the hole c in the lter-carrying disk to pass to e. nd from its position in line with the objeetive.

1n order to allow of varying the rapidity of movement of the disk, th e power of the spring :c can be moderated as required. by means ot a brake formed by a metal strip '13, hold. at one end by a screw 14, and the. Vtree end ot which can be moved 'forward or bank by turning a knob 15, the stern ol' which is a screw, which by screwing into the strip 13 eanses more or less pressure upon the point 1G ol the the spring a'.

The eonneetion between the change mech; anisin of the plates and that of the lilter-ear rying disk is established by the pin 6, which turns a lever 17, mounted upon a spindle t8, carrying a @am ll), in the Cam-slot or" whieh engageda pin 2t), whieh can slide in a vertical slot made in the partition 21 of the apparatus, A light spring 22 constantly acts upon. the spindle 18 to press the lever 17 against the pin 6. The pin 2O aotuates a slide 23, which nieves vertieally and Carries a double erossarin 24, having at its ends pins or trunnions 25, Fig. l, engaged in slots Linade in the ends of two rocking bars 26, the rear ends of the are drawn toward their lowerinost position by nieans ot s'j'n'ings 27. The lower arms ot the said bars are fa-eh provided with i'onr ratchet-teeth 2S, (as many as there are holes in the disk in) designed to ell'ert the hanging ol" the plates. '.l`o this end the plates are placed in metal trames. having on their lower edges projeetingr pins 2li, loealed between a lower angle-bar 3() and an upper plate l. These pins 2) are seized by the teeth "2F, oi" the bars 26 when the Jlilter-earrying disk A turns one division, and, a photographie plate has at. the saine time to be ohanged.

'lhe projeeting pin '29, whieh is a t the edge ol' theplate-earryiligtrame, rests on an anglo pietre, 5t) and runs under the lower edge o1" the plate-guide 251. A spring 3l, arranged behind the trames, tends to push them always forward. The rar-ks 2S) at they beginning stand in the position shown Vin dotted lines in ylligvl. Nhen the rack 26 presents one ol' its notehes to the pin 2t), this pin is pushed by the spring 3l under the tooth ol'v the rook. As the rank 2li 'falls its tooth bears on the pin 2t), pulling down the pin and the l'rnnie until the pin eo'nies opposite the openipg above the inclined"lano 3b, whereupon the pin slides ott the leveled upper edge ot the tooth and onto thoiprlined plane, which guides the pin and 'lranidto their proper position in the bottoirl ol` the :'xpparatus. lt is to be observed that the angle-bar Il() extends horizontally a less distance than the lengt h o'lI the pin 2Q, so that when the latter esrnpes over the end of the bar itlthe plate-holder ma)v linll l'reely.

llihen requiring to take trirolor photographs, the apparatus is sel b v turning the knob 5, whiehl plares the partsl in the position shown in Figs. 5 and ti, the knobs n and Vll being in the position indicated in Fig. 6 and the bars 2li being turned upward. llihen the knob o is pressed, the lever r is raised and rnrries with it. the two other levers g and y'. 'lhe 'lirst.,inovement whirh is prodnred is the 'rotation iill the shut ter zl, whieh exposes the objective under the notion oll :i spring "2, the said shutter beingl no longer retained hy the pin e. The seeond movement, reused hyreeasing pressure on the knob o, is the passing IOC ITO

seneca of the color-filter J behind thel objective, the first pin d having passed between the teeth e f, While the lowermost ratchet-teeth 28 of. the bars change the nrst plate by causing thepins 29 to slide over the inclined planes 33 in order to lay this plate in the bottom of the apparatus. To expose the second late behind the secondcolor-filter b', the knob o is pressed a second time`and released, and the said seoond plate is changed by the second ratchet- .teeth of the bars 26. The knobo is pressed a third time and released in order to expose and change the third plate. As soon as one first plate has been exposed one of the colorscreens ofthe disk A being in position opposite the objective, this disk advances under the action ofa second movement of the button, and it is While it moves behind the objective over the angular interval which separates two successive color-screens that the first plate falls, so that during the falling the first plate can receive no further impression and the second plate cannot have already received one.- This second plate receives noimpression until the disk A has terminated the angular movement above referred to and the second `color-screen has been placed behind the objective. The second plate then receives its impression. The same movement occurs for the third plate. When the third plate has been exposed, the pin 4 on the toothed sector 2 engages the incline 50 and lifts the pivoted bar 7, the nose of which causes the shutter w to again close. l At the end of the movement the pin 5 comes in contact With the stop 34 on the detent 8, and the apparatus must be set afresh if it is desired to continue with tricolor photography. When it is required to take ordinary photographs, the knobs a and 11 are half-turned, which causes the detent 8 and the lever to assume the position represented in Fig. 8 and 9. The apparatus is then s et by turning the handle e, which causes the disk A to take the position show-n in Fig. 9, the pin 5 lying in the slot of the detent 8. When the knob o is pressed,

the disengagement is effected, the shutter w opens, and the hole c passes in front of the objective to expose the plate, which falls into the bottom of the apparatus. At the same time that the plate is changed the pin 4 engages the incline 51 and lifts the pivoted bar 7, which closes the shutter again.

I claim as my invention- 1. In aphotographic camera, in combination, change mechanism for `color-ilters,

change mechanism for plates, and a connecting meansbeiween said mechanisms adapted to cause the simultaneous change movement of the color-filter with that of the exposed plate, substantially as set forth.

2. ln a photographic camera, the combination ofcolor-iilters and plates, a spiral spring which is set up from the outside, a toothed sector 2 actuated thereby, three pins .4, 5, 6carried by said sector, ashutter actuated by the pin 4, a detent for said spring adapted to be engaged by the pin 5 and to permit a limited play thereof, and change mechanism for the plates actuated by the pin 6, substantially as set forth.

3. ln a photographic camera, in combination, a spiral spring two pivoted bars 26 adapted to be swung by said spring, platecarriers provided with pins 29, and ratchet- -teeth 28 on -said bars 26 adapted to engagek said pins to shift a carrier from its exposed position, substantially as set forth.

4. In a photographjc camera for taking tricolor photographs, or ordinary photographs, as required, the combination of a spiral spring a cam 9, and a detent 8 the position of Which can be varied by means of said cam 9 for limiting the play or the expansion of the spiral spring av according to Whether it is required to take tricolor photographs or ordinary photographs, substantially as set forth.

5. In a photograhpic camera for taking tricolor photographs, or ordinary photographs, as required, the combination. of color-filters b, b, b2, a disk A carrying said filters, a donble detent-or escapement for controlling the rot-ation of said disk, the said escapement consisting of two teeth e, f, snperposed levers g, carrying said teeth e and f respectively, one of the said levers y' being adapted to be moved over the other in order to separate theA teeth e, from one another when re uiring to take ordinary photographs, said dis r having a hole c not provided With a color-filter, ico

said parts being arranged to allow the hole c to p ass behind the objective followed by the shutter, substantially as set forth.

In Witness whereof I have hereunto signed my-name, this 14th day of March, 1905, in 1o; 

